【摘要】 为快速测量大田土壤温湿度,而设计的仪器,湿度测量采用电容法。非电量经A/D转换后,通过EPROM制表的方法,实现了数据线性化。温度传感器采用AD590。更多还原

【Abstract】 An instrument is designed for rapid measurement of temperature and moisture of soil in field soil. The moisture is measured with capacity method. Measuring code was linearized after non-electric quantity was converted by anatlog-to-digital conversion and the EPROM tabulated data. An integrated temperature sensor AD590 is adopted.更多还原